Device for supporting chalk



S E N 0 U W R q d 0 M 0 m DEVICE FOR SUPPORTING CHALK.

N0. 457,559. Patented Aug. 11, 1891.

' awuo/wboz UNITED STATES PATENT EEICE.

RICHARD W. JONES, OF SYRACUSE, NEIV YORK.

SPECIFICATION forming part of Letters Patent NO. 457,559, dated August11, 1891.

Application filed November 7, 1890. Serial No. 370,689. (No model.)

To all whom it may concern.-

Be it known that I, RICHARD W. J ONES, of Syracuse, in the county ofOnondago, in the State of New York, have invented new and usefulImprovements in Devices for Supporting Chalk, of which the following,taken in connection with the accompanying drawings, is a full, clear,and exact description.

My invention relates to devices for supporting chalk in a billiard-room,and which are adapted to permit the chalk to be pulled down to be usedand when released will automatically elevate it out of the way.

My object is to produce a chalk-holder which will operate perfectlywithout noise or clatter and which will not permit of the twisting orentangling of the cord, and in which I use a sliding weight inclosed ina guide-tube, the pulley over which the cord passes being mountedremovably in the top of the tube. The doubled portion of the cordbetween the pulley and weight is held apart, and the free end of thecord passes down through the weight and out through a hole in the bottomof a screw-cap screwed onto the bottom of the tube.

My invention consists in the several novel features of construction andoperation hereinafter described and which are specifically set forth inthe claims hereto annexed. It is constructed as follows, reference beinghad to the accompanying drawings, in which Figure 1 is a side elevation.Fig. 2 is a vertical longitudinal section. Fig. 3 is a like section ofthe upper end of the tube and edge elevation of the pulley-block. Fig.4: is a transverse section of the base of the pulleyblock. Fig. 5 is anelevation of the weight detached and a plan view of the elastic washerwhich lies on top thereof. Fig. 6 is an elevation of the weight, showingthe manner in which the cord is attached to the weight.

A is a tube, the lower end of which is closed by a cap 1, screwedthereon or onto athreaded collar 2 thereon. This cap is provided with acentral opening 3, the edges of which are beveled or rounded.

B is a pulley-block inclosing a wheel 4. and provided with a base 5 ofsuch size as to properly fit into the top of the tube, said base havingvertical side grooves 6.

C is the sliding weight, of proper cylindrical, or other form, toloosely fit within the tube and provided with a vertical longitudinalgroove 7, (shown in dotted lines,) or with a hole through it vertically,and at 8 I show acavity dug out of the weight, leaving a rim 9, which isperforated vertically to receive the cord 10, one end of which issecured to the weight by the knot 11, which lies within said cavity.Thence the cord passes up over the pulley-wheel, down through the groove7 in the weight, thence down through the hole 3 in the cap and down tothe chalk-receiver 12. An elastic washer 13 is placed over the cord andlies on top of the weight to take up the concussion of the weightstriking the base of the pulley-block, and this is also grooved at a topermit the cord to pass down freely. Another elastic washer 14 is placedon the cord, held in position by the knot 15 in the cord, and isadjusted by shifting the knot up or down, and normally this washer liesagainst the bottom of the cap, as shown in Fig. 1. An eye 16 is formedon top of the pulley, in which I knot a cord, by which the device issuspended, and this cord also acts as a deadener when a metallicsuspension-hook is used.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. A device for supporting a chalk-holder, comprising a tube, a pulleyon top thereof, a sliding weight therein, a cord passing over the pulleyand having one end secured to the weight and the other passing downthrough the weight and out through the cap upon the bottom of the tube,and means to suspend the tube.

2. A device for supporting a chalk-holder, comprising a tube, a pulleydetachably secured to the top thereof, a sliding weight therein, a cordhaving one end secured to the weight and thence passing up over thepulley and thence down through the weight and out through the cap uponthe bottom of the tube, elastic washers upon the cord on top of theweight and below the cap, and means to suspend the tube.

3. The combination, with the tube, of a In witness whereof I havehereunto set my P y having 2t base fitting Within the tube hand this 5thday of November, 1890. and grooved vertically on opposite sides toreceive the cord, the cord passing over the I RICHARD WV. JONES. 5pulley, a sliding weight connected to said cord and through which the00rd passes, and means In presence of for holding the chalk secured tothe lowerend H. P. DENISON, of the COld below the tube. C. V. SMITH.

